Java tutorial
/* * The MIT License * * Copyright 2014 tim. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ package com.mastfrog.acteur.sse; import com.mastfrog.giulius.tests.GuiceRunner; import com.mastfrog.giulius.tests.TestWith; import com.mastfrog.netty.http.client.StateType; import com.mastfrog.netty.http.test.harness.TestHarness; import com.mastfrog.netty.http.test.harness.TestHarness.CallResult; import com.mastfrog.util.thread.Receiver; import io.netty.buffer.ByteBuf; import io.netty.handler.codec.http.HttpContent; import static io.netty.handler.codec.http.HttpResponseStatus.NOT_FOUND; import io.netty.util.CharsetUtil; import java.util.ArrayList; import java.util.List; import java.util.concurrent.CountDownLatch; import java.util.concurrent.atomic.AtomicInteger; import java.util.regex.Matcher; import java.util.regex.Pattern; import org.joda.time.Duration; import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertTrue; import org.junit.Test; import org.junit.runner.RunWith; /** * * @author tim */ @RunWith(GuiceRunner.class) @TestWith(SseApp.Module.class) public class SseTest { @Test(timeout = 90000) public void test(TestHarness harn) throws Throwable { long when = System.currentTimeMillis(); System.err.println("PORT " + harn.getPort()); System.err.flush(); harn.get("/foo").setTimeout(Duration.standardSeconds(60)).log().go().assertStatus(NOT_FOUND); final StringBuilder content = new StringBuilder(); final CallResult[] res = new CallResult[1]; final AtomicInteger count = new AtomicInteger(); res[0] = harn.get("/sse").on(StateType.ContentReceived, new Receiver<HttpContent>() { @Override public void receive(HttpContent c) { if (c == null) { System.out.println("GOT NULL BUF"); return; } ByteBuf buf = c.content(); byte[] bytes = new byte[buf.readableBytes()]; buf.readBytes(bytes); String s = new String(bytes, CharsetUtil.UTF_8); System.out.println("READ " + s); content.append(s); int ct = count.incrementAndGet(); if (ct > 5) { res[0].cancel(); } } }).setTimeout(Duration.standardSeconds(60)).go(); try { res[0].await(); } catch (InterruptedException ex) { ex.printStackTrace(); } List<String> ids = new ArrayList<>(); List<String> items = new ArrayList<>(); for (String line : content.toString().split("\n")) { if (line.startsWith("id: ")) { ids.add(line.substring(4)); } if (line.startsWith("data: ")) { items.add(line.substring(6)); } } int last = -1; for (String s : ids) { Matcher m = Pattern.compile("(\\d+)\\-(\\d*)$").matcher(s); assertTrue(m.find()); int id = Integer.parseInt(m.group(1)); long ts = Long.parseLong(m.group(2)); assertTrue(id > last); assertTrue(ts > when); if (last != -1) { assertEquals(last + 1, id); } last = id; } last = -1; for (String item : items) { Matcher m = Pattern.compile("hello (\\d+)").matcher(item); assertTrue(m.find()); int val = Integer.parseInt(m.group(1)); if (last != -1) { assertEquals(last + 1, val); } last = val; } } }